Rag-catching apparatus for beater tubs



May 27, 1930. H. E. MARVEL RAG CATCHING APPARATUS FOR BEATER TUBS 3 Sheets-Shet 1 Filed June 2'7, 1927 five/afar Q E Am d C we h i Z h C a G An w c w a 4 f .1 wiflflam J 6 2 J 5 J J 6 M J a May 2?, 1930. H. E. MARVEL- RAG CATCHING APPARATUS FOR BEATER I'UBS Filed June 27, 1927 3 Sheets-Sheet '2 y 1930- H. E. MARVEL 1,760,511

RAG CATCHING APPARATUS FOR BEATER TUBS Filed June 27, 1927 3 Shets-Sheet s 1 down on a portion of the cradle andthe catch Patented May 27, 1930 PATENT orrlc a 1 V am HARVEY E. MAnvEn, or roar WAYNE, INDIANA, ASSIGNOR '10 s. r. nowsnn, & com- PANY, INC., 01? roar wavnninniana, A conroaarron or INDIANA RAG-CATCITINGAPPARATUS FOR HEATER TUIBS Application filed June 27,

My present invention relates in general to improvements in paper-making equipment and has particularreference to an improved means for removing rags and other foreign ried out manually and in this way speed up production with increased eiiiciency and many other improved results. 7 s

Further objects and advantages of the in ventionwi-ll be described in detail asthe description proceeds with reference to the accom an m drawin s in which a aractical C) i b c embodiment of the invention is illustrated. In saiddrawingszi d Fig; 1 is a view in front elevation of the rag catching apparatus illustrating its application to a beater tub which shown-in section;

c Fig, 2 is a view ffromone'side'of the rag catching apparatus with partsthereof shown in section;

t Fig. 3 is an enlarged "detail view from one side of the rag catcher cradle and some of the parts which co operate therewith;

Fig; 4 is a horizontal section thnough the fluid pressurecylinder taken on the line ofFig. 2;

Fig. 5 is a top plan view of the rag catcher 7 showing its application to a beater tub.

Fig. 6 is a detail view in plan looking which co-operates therewith.

Fig. 7 is anenlarged detailview of oneof' c "the cradle fingers. i

Referringnow were drawings in detail, 5 represents a beater tub which isfused in the 1 paper. making industry and from which it becomes necessary to'remove rags and other foreign substances at more or less frequent intervals in the course of operations. The

1927. Serial No. 201,566.

present invention provides means for efi'ectsome other receptacle suitable to receive them,

with the apparatus primarily designed to accomplish this operation in a convenient and practicalway. According to its preferred construction, the apparatus is intended to be lowered into the beater tub for collecting a quantity of the rags contained therein, then elevating from the tub, lifting the collected ragswith it, and then moved into an unload ing position preferablyto one side of the; tub where the rags may be unloaded upon the trough, cart, or other suitable receptacle, above referred to. 1

According to the embodiment of the invention which has been selected for illustrating the apparatus, the sameis made up for the most part of pipe sections and fittings therefor which will cheapen the cost of producing. the apparatus, making it convenient to as,- semble and otherwise improving its construction. With this end in View, it is proposed to make up a main supporting post 6 from two lengths, as an example, of pipe sections, the same being united end to end by, a T-union or other suitable fitting 7. 1 Theloweroneof these sections will extend through the head 8 of an upright cylinder 9 with theterininal thereof connected to the piston 10 which is mounted for reciprocation in the cylinder 9. The connection between the pistonIO and the lower pipesection of the post 6 preferably comprises a cup-shaped pedestal hearing 11 which is made to receive and support 1 of the head providing an abutment for the ring or flange 16 which encircles adjacent its lowerend. c a a a Coiled aroundthe lower end of the post be tween the flange 16 and the cup-shapedpedes tal bearing 11 isa spiral spring 17 which will cushion-the up stroke of the piston, 10. I The the post pedestal bearing 11 is equipped with a ball thrust bearin 11' underneath so as to permit rotation of t e post relative to the piston and cylinder.

The cylinder 9 may be secured to the outside of the beater tub by a suitable bracket 18 and, aside from the head 8,it comprises a base 19 with a plurality of connecting rods 20 radially spaced around the cylinder for coniiecting the head with the base and securing these parts to the respective ends of the cylinder. The base 19 is made with a central boss 21 having an internal bore 22 for the reception of the nut 13 on the end of the bolt 12 when the piston is at the limit of its down stroke in the cylinder. Projecting from one side of the base 19 is an integral extension 23 having a duct 24 which communicates with the bottom of the cylinder at one end and with its opposite end communicating with a tion which relieves compression and vacuum created in the cylinder above the piston. It is to be noted that the pipe makes an open connection or communication at the top of the cylinder which is in no way affected by the opening and closing of the valve 26.

By opening the valve 26, water pressure, as an example, may be admitted into the cylinder 9 from the pipe 27 and the piston, in response thereto, will elevate the-post 6. By closing the valve 26, water pressure may be trapped in the cylinder 9 tohold the post 6 elevated in any desired vertical position, of

f. course within the limits of the length of the cylinder, By moving the valve lever 26 into a position to establish a communication between the pipe 25 and the discharge 28, the water'may be discharged from the. cylinder 9, whereupon the piston 10 will be lowered, carrying with it the post 6. Inthis way, the post may be conveniently elevated and lowcred, the purpose of which will be presently described. 7

V The .reciprocation so to speak, of the post 6,;is guidedby a plurality of rollers 32 which ouped about the post above th'e'T-fitting "These'rol'lers are mounted with free dom of. rotation around the post by a strap bracket33 which is connected to a pair of obliquebraces 34, oneof which extends down wardly. across the beater tub 5 transversely thereof andis connected to the beater tub,as

.at"35;sthrough' the Jnedium of a strap, 3

which, in turn, is'co'nnected, as at 37, to a transverse strip or rod 38 disposed across the top and secured to the opposite side thereof, as at 39. The other one of these oblique braces 36 extends downwardly substantially parallel with the side of the beater tub and is secured thereto, as at 40, through the me dium of a bracket plate 41. These braces are made from rods and the ends are threaded so that they may be threaded into nipples 42 on the mounting 33 for the roilcrs 32 as well as to accommodate nuts for securing the same at the ends which are fastened to the sides of the beater tub. The braces 34 thus steady the .post 6 and serve to support the mounting 33 for the rollers 32.

The rag catcher carriage is preferably made up of a boom 43 comprising a pipe section or rather, a long pipe section and a short pipe section, the latter being threaded into one branch of the T-fitting 7 and joined to the former by a T-fitting 44. The outer end of the section 43 of the boom is threaded into one end of an L-fitting 45. Secured to the L-fitting 45 by an car 46 is a suspension brace 47, the opposite end of which terminates in a hook 48 which engages in the open end of the post 6. This suspension brace 47 serves to relieve the boom 43 of the weight carried thereby.

Threaded'to the T-fitting 44 on the boom 43and depending downwardly therefrom is a pipe section 49 which serves as one side member of the rag catcher carriage. The opposite side 'member for the carriage is provided for by a pipe section 50 which is threaded to the L-fitting 45. The ends of these pipes 49 and 50 are threaded for the reception of caps 51 and 52. These caps are made with ears 53 and 54 which have openings therethrough for the reception of a horizontal rod 55. V

The cradle structure'for the rag catcher carriage, comprises a plurality of parallel rod-like members or'fingers 56 each of which h ave their lower extremities curved outwardly to makeup a cradle, so to speak, for collecting and carrying the rags. The outside ones of these fingers are shorter than the others. This applies also to the fingers next to the outsideones. The lower ends of the fingers are clamped or otherwise secured, as

at 57, to the horizontal rod of the rag catchercarriage and the upper ends of the fingers are secured to a horizontal rod 58, the opposite ends of which bear against the side members49 and 50 of the carriage but are not connected thereto. .Ahold-back rod 59 bridges the space between the side members 49 and 50 ofthe carriage parallel with the rod 58 and has its opposite ends inserted throughand journaled in transverse openings in the side members 49 and 50. This rod 59 is thus mounted. for rotation. between the side members and secured to the rod, adjacent its journaled ends, by set screws 60, are rocking 1 mean 1 The opposite ends ofthese lovers are pro VldJClWltlIllOSG p eces 64 having dogging devices in the form of hookswhich engage the rod 58 of thecarriage cradle. The rod 55, to which the lower ends of the fingers are secured by the members 57, is journaled, so to sgiealr, in the cars 53 of the caps on the ends ofthe side members 4-9 and 50. Consequent. ly, the. cradle of the carriage is hingedly or pivotally connected to the carriage so that it may swing intoa position shown in dotted lineswin Fig. 3, todump the load carried thereby when released by the catches as a result of t e pull on the levers 6'2. i

In operating the rag catcher and considering that thecarriage thereof is inan elevated positionsubstantially as that shown in Fig. l, the valve 26 will be operated to discharge the water pressure from the cylinder 9, permittingthe piston 10 to move to the bottom of the cylinder and, as a result, lowering the post 6 which will lower the rag catcher carriage into the beat-er tub where the cradle contained in the tub.

By reversing the position of the valve 26, the waterpressure will be introduced into the thereof will collect a quantity ofthe rags cylinder 9,1noving thepiston 10 upwardly therein, elevating the post 6, and elevating the rag catchercarriage out of the beater tub with the load carried thereby. When it has been elevated to the desired height, the valve 26 -7 may be manipulated to trap the water pressure in the cylinder9 below the piston 10 to maintain the desired elevation of the carriage. The carriage may then be swung to one side of the heater tub into a position, as an example, as shown indotted lines in Fig. 5. When in such position, the levers 62 will be pulled which will roclr the levers 61 and disconnect the catches thereof from the rod 58.

releasing the cradle so that it will tilt under the influence of the load carried thereby into a position shown in dotted lines in Fig. 3, and discharge the load carried thereby. Vhen the cradle has been relieved of the load, it may be moved into load-carrying position a where the catches will automatically engage the same and lock it in such position. The

carriage is then ready to be swung back over the beater tub and the operation repeated.

Obviously those skilled in the art may make various changes in the details and arrange- .ment of parts as defined 1n the appended claims without departing from the spirit and scope ofthe invention, and I wish therefore not to be restricted to the precise construction herein disclosed.

I claim 1. In a rag catcher of the class described, a material handling carriage mounted to be lowered into and elevated from a beater tub one side of said tub, a materiahcollecting cradle comprising a plurality of spaced-apart rods each having upright comparatively long arms and lower horizontally projecting short arms pivotally mounted on said carriage to swing on a horizontal axis, a rod connecting 2. In a rag catcher of the class described,

the combination with a supporting frame,of a cradle pivoted to said frame and comprising a plurality of spaced-apart rods having lower rag catching projections and upper upright long arms, and releasable latch mechanism between said frame and the upper end of said cradle for holding the cradle upright while carrying a load and for permitting tilting of the cradle when said latch mechanism is released for the purpose of dumping the load.

3. In a rag catcher of the class described, the combination with a supporting frame, of fluid pressuremechanism for elevating and lowering said frame, a supplemental frame pivoted to said supporting frame and comprising an upper long arm and a lower short arm composed of a plurality of spaced-apart curved rag catching members, and releasable latch mechanism for holding the long arm in upright position while said rag catching members are carrying a load, said long arm being adapted to move awayfrom said sup porting frame when said latch mechanism is released to effect tilting of the rag catching members and the dumping of the load.

i. In a rag catcher of the class described, the combination with a supporting frame, of means for elevating and lowering said sup porting frame and pivotally supporting the same on an upright axis for swinging movement laterally, a supplemental frame pivoted to said supporting frame for tilting movement relatively thereto on a horizontal axis,

said supplemental frame having a long upframe on that side of said horizontal axis opposite said long arm. 7 a 5. In a rag cateherof theclass described,

st-supporting structure for positioning a ma serial-handling carriage in operating relation to a beater tub, and fluid pressure means for elevating'and lowering saidcarriage rel ative to said heater tub, comprising a cylinand moved into a low dumping position at der, a piston mounted for reciprocation in said cylinder in response to fluid pressure introduced therein, and a post connected to said piston to reciprocate therewith and to which the materlal-handllng carnage is mounted,

said material-handling carriage comprising.

- of the cradle, and a catch on the material- I tub.

handling carriage for releasably holding said cradle in load-carrying position.

6. In a rag catcher of the class described, a material handling carriage mounted to be lowered into and elevated from a beater tub, a material-collecting cradle pivotally mounted on the lower end of said carriage to swing on a horizontal axis and comprising a plurality of spaced-apart horizontally projecting fingers below the pivot and a comparatively lon back portion projecting uprightly above sai pivot, and releasable mechanism for holding the fingers of said cradle in horizontal position and the back portion thereof in uprightposition while carrying a load, said cradle being swung automatically when released to permit the fingers to assume an upright position and movement of the back portion toward horizontal position.-

7. In a rag catcher of the class described, the combination with an upright post adapted to be positioned adjacent a beater tub, of a boom-like member connected to said post and adapted to swing over said beater tub, a carriage suspended from said boom-like member in an upright plane, a material-collecting and dumping cradle pivotally mounted on the lower end of said carriage for movement bodily therewith, said cradle comprising a plurality of spaced-apart downwardly and horizontally projecting rag catchers, means for holding said cradle in upright position, and means for elevating and lowering said post together with the parts mounted thereon to place said cradle in position for gathering a load and removing such load from the beater 8. In a rag catcher of the class described, the combination with an upright post adapted to be positioned adjacent a beater tub for rotation on an upright axis, of a boom extending horizontally from said post to swing over said beater tub and to one side away from the same, a carriage suspended from said boom, in an upright plane, a material-collecting and dumping cradle pivotally connected to the lower end of said carriage for bodily movement therewith and comprising a plurality of spaced-apart downwardly and horizontally projecting rag-catching members and upwardly projecting arms to form a back rest, means for elevating and lowering said post to elevate and lower said rag-catching members into the beater tub, and means on said carriage for releasably holding said cradle in material-collecting position.

9. In a rag catcher of the class described, the combination with an upright post adapted to be positioned adjacent a beater tub, of. a boom extending laterally from said post intermediate the ends thereof and adapted to swing over the beater tub and away from the same, a hydraulic motor for lifting and lowering said post together with said boom mounted thereon, said hydraulic motor affording an upright pivotal support for said 6 post to permit swinging of said boom on the upright axis of said post, a carriage suspended from said boom, a material-collecting and dumping cradle pivotally mounted on the lower end of said carriage for tilting movement on a horizontal axis, and releasable latch mechanism for holding said cradle in upright position during the carrying of the load while said cradle is being elevated from the beater tub by the elevation of said post and swung away from the latter by the swinging of said boom on the upright axis of said post.

In testimony whereof I have signed my name to this specification on this 24 day of June, A. D. 1927.

V HARVEY I MARVEL. 

